Justin Forsett. The second-year back displayed his ability as a runner, returner and even receiver during his rookie training camp.

Saturday, in the first full-pads practice of this year’s camp, Forsett showed he also can block by turning down the heat – second-year middle linebacker David Hawthorne, who earned the nickname “The Heater” for his big hits last summer.

Despite giving up 46 pounds, Forsett stoned Hawthorne with a textbook block in a drill that matched a back against a linebacker.

“I’ve got to get a little bit better at holding on a little bit longer,” Forsett said. “But it got the job done, and that was ‘The Heater.’ ”

When it was their turn again, Hawthorne went outside on Forsett, but the 194-pound back was able to stay in front of him.

Forsett also delivered the expected, when he broke a nice run by slicing through a gap in the line.

It would not have been an official full-pads practice without C.J. Wallace announcing his presence, and the former University of Washington safety didn’t disappoint by thumping tight end Joe Newton to the ground after a reception.

Wallace made the club as rookie free agent two years ago because of his hard-hitting play in training camp and the preseason.

PLAY OF THE DAY

Forsett’s little-big-man block, obviously. But honorable mention goes to cornerback Kevin Hobbs for intercepting a Matt Hasselbeck pass intended for Deion Branch along the sideline and Michael Bumpus for reaching over safety Jamar Adams to make a nice catch of a Mike Teel pass in the end zone.

POSITION WATCH

Offensive line. By unofficial count, line coach Mike Solari used seven different combinations in the morning practice and the mix-and-matching madness continued during the afternoon session.

That will happen when you lose left guard Mike Wahle before the first practice (he was released Friday after failing his physical), left tackle Walter Jones sat out both practices Saturday to rest his surgically repaired left knee and the snaps for center Chris Spencer (back) and right tackle Ray Willis (knee) also are being monitored.

Second-round draft choice Max Unger seemed to be constantly on the move, playing right guard with the No. 2 unit, left guard in another alignment and even getting some snaps at center with the No. 1 unit. Grey Ruegamer and Cory Withrow, who were just signed on Friday, each lined up at two different spots.

Despite the almost constant shuffling, there were few mental mistakes and even less physical breakdowns.

Credit Solari, who credits his players and fellow offensive coaches.

“They have a great understanding,” he said. “They’ve been working hard on and off the field. And a lot of credit goes to (coach) Jim (Mora) and (offensive coordinator) Greg (Knapp) for their preparation and introduction of the system in the mimicamps and OTAs.”

The No. 1 unit included – from left tackle to right – Sean Locklear, Rob Sims, Spencer, Mansfield Wrotto and Willis. On the No. 2 unit were Kyle Williams, Ruegamer, Steve Vallos, Unger and Na’Shan Goddard. The other units were variations of those players, as well as Withrow and tackles Will Robinson and Andre Ramsey.

ROLL CALL

D.D. Lewis was back on a limited basis after sitting out the morning practice, and the veteran linebacker worked with Lofa Tatupu and Leroy Hill in the No. 1 unit during early drills.

Cornerback Marcus Trufant remains on the PUP list, while defensive end Baraka Atkins has been excused for two days to attend the funeral of a close friend in Florida.

ON TAP

The team will practice once Sunday, from 3:30-5:30 p.m.

The first practices that will be open to the public take place Monday, from 8:30-10:30 a.m. and 6:30-8:30 p.m. The sessions are sold out.

The evening sessions will now start at 6:30, rather than 6:45, for the remainder of camp.

YOU DON’T SAY

“I thought the energy level was better, the tempo was better, the execution was better. We practiced at a better speed from snap to whistle. It was more like what we’re about. So that was encouraging.” – Mora, who was not satisfied with the overall effort in Friday’s first practice